Eldarion and Bruce's build of Bob's Energy Converter

[eldarion]

Well, I did some calculations, and I am seriously beginning to doubt the 500ns pulse width.

Here's why:
The PWM3E system has a minimum output pulse width of 11000ns (11us).
That same system has a 500ns minimum rise time into the gates of the MOSFETs alone.
The impedance into the primary coils at 2MHz (equivalent to a 500ns pulse) is about 4 kilohms!
There isn't even enough time to build up a tiny magnetic field with a 500ns pulse.
I am getting zero output right now at 500ns.

I will be testing larger pulse widths later on today.

Eldarion

[eldarion]

Ok, here are the preliminary results:
4.5W in, 1.9W out.  This was rectified, filtered DC, pulse width 11000ns, F1 10KHz.

However, this setup gave me an odd dependence on the HV potential--changing this potential had no electrical effect, but this happened instead:
The core gives off a small audible signal when running, in this case it sounded like 10KHz.  When I connected the HV potential circuit and turned it on, this audible signal doubled in apparent intensity.  It also displays a very strong correlation with the voltage of the HV potential, far stronger than that tiny oscillation on the output signal I noted before.

I will be trying different output circuit configurations to see if I can couple into this effect at all and get an electrical output power increase.  For all I know, I am outputting tons of longitudinal energy and don't even know it, but the core just might have "known" and started to sing in response!

Eldarion

[eldarion]

This is interesting from D9.pdf:

The objective here is to have the complex waveform generated by the electronics produce voltages of about 25% of the main power supply voltage at the electrolyser.  In other words, if an inverter is being used and its output rectified to produce about 155 volts of pulsing DC, then the toroid transformer secondary should generate about 40 volts.

The output from the electronics board is about 13.8 volts when driven by a vehicle?s electrical system, so to step that up to about 40 volts requires a step up of 2.9, which means that the secondary winding needs to have 2.9 times as many turns in it as the primary winding does.   So divide the number of turns in your secondary winding by 2.9 to calculate the number of turns in each of the three primary windings.   If you had 140 turns in the secondary, then there would be 48 turns in each of the three primary windings.

We only have 28 turns on each primary!

Hmmm....

Eldarion

[Bob Boyce]

This is interesting from D9.pdf:

The objective here is to have the complex waveform generated by the electronics produce voltages of about 25% of the main power supply voltage at the electrolyser.  In other words, if an inverter is being used and its output rectified to produce about 155 volts of pulsing DC, then the toroid transformer secondary should generate about 40 volts.

The output from the electronics board is about 13.8 volts when driven by a vehicle?s electrical system, so to step that up to about 40 volts requires a step up of 2.9, which means that the secondary winding needs to have 2.9 times as many turns in it as the primary winding does.   So divide the number of turns in your secondary winding by 2.9 to calculate the number of turns in each of the three primary windings.   If you had 140 turns in the secondary, then there would be 48 turns in each of the three primary windings.

We only have 28 turns on each primary!

Hmmm....

Eldarion

Wow, finally able to read and respond here now that I am on a broadband WiFi connection ;-)

I didn't write that D9.pdf document.I never gave exact turns for anything. It was always stated as a ratio, 25% of the HV bias applied to the water, and that ratio ONLY pertains to the drive necessary to get reaction of water to absorb LEM. I think Patrick took absolutes from some cores I wound in the past where I posted turns counts for a particular core and application. I had never wound a T650-52 before, so there had been no data to base turns count on for that particular core.

You're looking at the wrong source of info. As I had stated elsewhere, the hydroxy stuff has certain requirements that must be met in order for water to be entrained and respond to LEM. The energy application of this technology is not limited by these constraints. It is actually much simpler to tap LEM for energy, just harder to get LEM > TEM conversion to take place without water. Any further questions please post in a thread that is not loaded with images so i can respond from dialup at home ;-)

Keep at it, you should be able to get some positive results with few changes to the setup you are using.

Bob

[eldarion]

Hello all,

I just got off the phone with Bob a half hour or so ago.  He was very helpful!   I now have a much better understanding of the energy converter technology...

From what we can tell, my output stages are not able to drive the coil properly, hence my lack of results  I have ordered, at his recommendation, a matched set of four IGBTs, part # MG400Q1US41(EP).  I have also ordered some UCC37322 MOSFET drivers to make absolutely certain that I have the correct waveforms into the IGBTs.

I will post schematics of the new output driver design after I have finished and smoke-tested it!

Also, something else interesting.  The secondary outputs pure LMD, and cannot be used to close the loop without conversion from LMD back to TEM.  Where you should be getting TEM output is on the longitudinal pancake windings, and that should be DC and in overunity quantities (here on Earth, anyway )

Eldarion